<template>
  <div class="app-container">
    <!-- 查询和其他操作 -->
    <div class="filter-container">
      <el-input
        v-model="listQuery.name"
        clearable
        class="filter-item"
        style="width: 200px;"
        placeholder="请输入优惠券标题"
      />
      <el-select
        v-model="listQuery.type"
        clearable
        style="width: 200px"
        class="filter-item"
        placeholder="请选择优惠券类型"
      >
        <el-option
          v-for="type in typeOptions"
          :key="type.value"
          :label="type.label"
          :value="type.value"
        />
      </el-select>
      <el-select
        v-model="listQuery.status"
        clearable
        style="width: 200px"
        class="filter-item"
        placeholder="请选择优惠券状态"
      >
        <el-option
          v-for="type in statusOptions"
          :key="type.value"
          :label="type.label"
          :value="type.value"
        />
      </el-select>
      <el-button
        v-permission="['GET /admin/coupon/list']"
        class="filter-item"
        type="primary"
        icon="el-icon-search"
        @click="handleFilter"
      >查找</el-button>
      <el-button
        v-permission="['POST /admin/coupon/create']"
        class="filter-item"
        type="primary"
        icon="el-icon-edit"
        @click="handleCreate"
      >添加</el-button>
      <el-button
        :loading="downloadLoading"
        class="filter-item"
        type="primary"
        icon="el-icon-download"
        @click="handleDownload"
      >导出</el-button>
    </div>

    <!-- 查询结果 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      element-loading-text="正在查询中。。。"
      border
      fit
      highlight-current-row
    >
      <el-table-column align="center" label="优惠券ID" prop="id" sortable />

      <el-table-column align="center" label="优惠券名称" prop="name" />

      <!-- <el-table-column align="center" label="介绍" prop="desc" />

      <el-table-column align="center" label="标签" prop="tag" />-->

      <el-table-column align="center" label="最低消费" prop="min">
        <template slot-scope="scope">满{{ scope.row.min }}元可用</template>
      </el-table-column>

      <el-table-column align="center" label="满减金额" prop="discount">
        <template slot-scope="scope">减免{{ scope.row.discount }}元</template>
      </el-table-column>

      <!-- <el-table-column align="center" label="每人限领" prop="limit">
        <template slot-scope="scope">{{ scope.row.limit != 0 ? scope.row.limit : "不限" }}</template>
      </el-table-column>-->

      <el-table-column align="center" label="商品使用范围" prop="goodsType">
        <template slot-scope="scope">{{ scope.row.goodsType | formatGoodsType }}</template>
      </el-table-column>

      <el-table-column align="center" label="优惠券类型" prop="type">
        <template slot-scope="scope">{{ scope.row.type | formatType }}</template>
      </el-table-column>

      <!-- <el-table-column align="center" label="优惠券数量" prop="total">
        <template slot-scope="scope">{{ scope.row.total != 0 ? scope.row.total : "不限" }}</template>
      </el-table-column>-->

      <el-table-column align="center" label="状态" prop="status">
        <template slot-scope="scope">{{ scope.row.status | formatStatus }}</template>
      </el-table-column>

      <el-table-column align="center" label="操作" width="300" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            v-permission="['GET /admin/coupon/read']"
            type="primary"
            size="mini"
            @click="handleDetail(scope.row)"
          >详情</el-button>
          <el-button
            v-permission="['POST /admin/coupon/update']"
            type="info"
            size="mini"
            @click="handleUpdate(scope.row)"
          >编辑</el-button>
          <el-button
            v-permission="['POST /admin/coupon/delete']"
            type="danger"
            size="mini"
            @click="handleDelete(scope.row)"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="listQuery.page"
      :limit.sync="listQuery.limit"
      @pagination="getList"
    />

    <!-- 添加或修改对话框 -->
    <el-dialog :title="textMap[dialogStatus]" :visible.sync="dialogFormVisible">
      <el-form
        ref="dataForm"
        :rules="rules"
        :model="dataForm"
        status-icon
        label-position="left"
        label-width="100px"
        style="width: 400px; margin-left:50px;"
      >
        <el-form-item label="优惠券类型" prop="type">
          <el-select v-model="dataForm.type" v-if="dialogStatus == 'update'" disabled  @change="clickType(dataForm.type)">
            <el-option
              v-for="type in typeOptions"
              :key="type.value"
              :label="type.label"
              :value="type.value"
            />
          </el-select>
          <el-select v-model="dataForm.type" v-if="dialogStatus != 'update'"  @change="clickType(dataForm.type)">
            <el-option
              v-for="type in typeOptions"
              :key="type.value"
              :label="type.label"
              :value="type.value"
            />
          </el-select>
        </el-form-item>
        <el-form-item label="优惠券名称" prop="name">
          <el-input v-model="dataForm.name" />
        </el-form-item>
        <el-form-item v-if="dataForm.type != 1" label="优惠码" prop="code">
          <el-input v-model="dataForm.code" />
        </el-form-item>
        <el-form-item v-if="dataForm.type == 3" label="折扣" prop="discount">
          <el-input v-model="dataForm.discount" />
        </el-form-item>
        <!-- <el-form-item label="介绍" prop="desc">
          <el-input v-model="dataForm.desc" />
        </el-form-item>
        <el-form-item label="标签" prop="tag">
          <el-input v-model="dataForm.tag" />
        </el-form-item>-->

        <!-- <el-form-item label="发行数量" prop="total">
          <el-input v-model="dataForm.total">
            <template slot="append">张</template>
          </el-input>
        </el-form-item>-->

        <el-form-item v-if="dataForm.type != 3" label="面额" prop="discount">
          <el-input v-model="dataForm.discount">
            <template slot="append">元</template>
          </el-input>
        </el-form-item>
        <el-form-item v-if="dataForm.type != 3" label="使用门槛" prop="min">
          <el-input v-model="dataForm.min">
            <template slot="prepend">满</template>
            <template slot="append">元可用</template>
          </el-input>
        </el-form-item>

        <!-- <el-form-item label="每人限领" prop="limit">
          <el-input v-model="dataForm.limit">
            <template slot="append">张</template>
          </el-input>
        </el-form-item>-->
        <el-form-item label="有效期">
          <el-col :span="11">
            <el-date-picker
              v-model="dataForm.startTime"
              type="datetime"
              placeholder="选择日期"
              value-format="yyyy-MM-dd HH:mm:ss"
              style="width: 100%;"
            />
          </el-col>
          <el-col :span="2" class="line">至</el-col>
          <el-col :span="11">
            <el-date-picker
              v-model="dataForm.endTime"
              type="datetime"
              placeholder="选择日期"
              value-format="yyyy-MM-dd HH:mm:ss"
              style="width: 100%;"
            />
          </el-col>
        </el-form-item>
        <!-- <el-form-item label="有效期">
          <el-radio-group v-model="dataForm.timeType">
            <el-radio-button :label="0">领券相对天数</el-radio-button>
            <el-radio-button :label="1">指定绝对时间</el-radio-button>
          </el-radio-group>
        </el-form-item>
        <el-form-item v-show="dataForm.timeType === 0">
          <el-input v-model="dataForm.days">
            <template slot="append">天</template>
          </el-input>
        </el-form-item>-->
        <!-- <el-form-item v-show="dataForm.timeType === 1">
          <el-col :span="11">
            <el-date-picker v-model="dataForm.startTime" type="datetime" placeholder="选择日期" value-format="yyyy-MM-dd HH:mm:ss" style="width: 100%;" />
          </el-col>
          <el-col :span="2" class="line">至</el-col>
          <el-col :span="11">
            <el-date-picker v-model="dataForm.endTime" type="datetime" placeholder="选择日期" value-format="yyyy-MM-dd HH:mm:ss" style="width: 100%;" />
          </el-col>
        </el-form-item>-->
        <!-- <el-form-item label="商品限制范围">
          <el-radio-group v-model="dataForm.goodsType">
            <el-radio-button :label="0">全场通用</el-radio-button>
            <el-radio-button :label="1">指定分类</el-radio-button>
            <el-radio-button :label="2">指定商品</el-radio-button>
          </el-radio-group>
        </el-form-item> -->
        <!-- <el-form-item v-show="dataForm.goodsType === 1">
          <el-cascader
            v-model="selectGoodsCategory"
            clearable
            placeholder="请选择分类名称"
            expand-trigger="hover"
            :props="{ checkStrictly: true }"
            :options="goodsCategoryOptions"
          />
          <el-button @click="handleAddGoodsCategory()">添加</el-button>
          <el-table
            ref="goodsCateRelationTable"
            :data="couponCategoryList"
            style="width: 100%;margin-top: 20px"
            border
          >
            <el-table-column label="分类名称" align="center">
              <template
                slot-scope="scope"
              >{{ scope.row.parentCategoryName }}>{{ scope.row.goodsCategoryName }}>{{ scope.row.pParentCategoryName }}</template>
            </el-table-column>
            <el-table-column label="操作" align="center" width="100">
              <template slot-scope="scope">
                <el-button
                  size="mini"
                  type="text"
                  @click="handleDeleteGoodsCategory(scope.$index, scope.row)"
                >删除</el-button>
              </template>
            </el-table-column>
          </el-table>
        </el-form-item> -->
        <!-- <el-form-item v-show="dataForm.goodsType === 2">
          <el-select
            v-model="selectGoods"
            filterable
            remote
            reserve-keyword
            placeholder="商品名称/商品货号"
          >
            <el-option
              v-for="item in goodsOptions"
              :key="item.goodsId"
              :label="item.goodsName"
              :value="item.goodsId"
            >
              <span style="float: left">{{ item.goodsName }}</span>
              <span style="float: right; color: #8492a6; font-size: 13px">NO.{{ item.goodsSn }}</span>
            </el-option>
          </el-select>
          <el-button @click="handleAddGoods()">添加</el-button>
          <el-table
            ref="goodsRelationTable"
            :data="couponGoodsList"
            style="width: 100%;margin-top: 20px"
            border
          >
            <el-table-column label="商品名称" align="center">
              <template slot-scope="scope">{{ scope.row.goodsName }}</template>
            </el-table-column>
            <el-table-column label="商品编号" align="center" width="80">
              <template slot-scope="scope">{{ scope.row.goodsSn }}</template>
            </el-table-column>
            <el-table-column label="操作" align="center" width="60">
              <template slot-scope="scope">
                <el-button
                  size="mini"
                  type="text"
                  @click="handleDeleteGoods(scope.$index, scope.row)"
                >删除</el-button>
              </template>
            </el-table-column>
          </el-table>
        </el-form-item> -->
        <el-form-item label="是否上架" prop="status">
          <el-switch v-model="dataForm.status" active-text="是" inactive-text="否" :active-value="1" :inactive-value="0"></el-switch>
        </el-form-item>
        <el-form-item label="发送全部会员" prop="sendType">
          <el-switch v-model="dataForm.sendType" active-text="是" inactive-text="否"></el-switch>
        </el-form-item>
        <el-form-item v-show="dataForm.sendType === false">
          <el-select v-model="dataForm.sendUserId" multiple placeholder="请选择会员">
            <el-option
              v-for="type in sendUserList"
              :key="type.id"
              :label="type.username"
              :value="type.id"
            ></el-option>
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取消</el-button>
        <el-button v-if="dialogStatus=='create'" type="primary" @click="createData">确定</el-button>
        <el-button v-else type="primary" @click="updateData">确定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.avatar-uploader .el-upload:hover {
  border-color: #20a0ff;
}
.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 120px;
  height: 120px;
  line-height: 120px;
  text-align: center;
}
.avatar {
  width: 120px;
  height: 120px;
  display: block;
}
</style>

<script>
import {
  listCoupon,
  createCoupon,
  updateCoupon,
  deleteCoupon,
} from "@/api/coupon";
import { listCategory } from "@/api/category.js";
import { listGoods } from "@/api/goods.js";
import { findVip } from "@/api/user.js";
import Pagination from "@/components/Pagination"; // Secondary package based on el-pagination

const defaultTypeOptions = [
  {
    label: "优惠券",
    value: 1,
  },
  {
    label: "优惠码满减",
    value: 2,
  },
  {
    label: "优惠码折扣",
    value: 3,
  },
];

const defaultStatusOptions = [
  {
    label: "正常",
    value: 1,
  },
  {
    label: "已过期",
    value: -1,
  },
  {
    label: "已下架",
    value: 0,
  },
];

export default {
  name: "Coupon",
  components: { Pagination },
  filters: {
    formatType(type) {
      for (let i = 0; i < defaultTypeOptions.length; i++) {
        if (type === defaultTypeOptions[i].value) {
          return defaultTypeOptions[i].label;
        }
      }
      return "";
    },
    formatGoodsType(goodsType) {
      if (goodsType === 0) {
        return "全场通用";
      } else if (goodsType === 1) {
        return "指定分类";
      } else {
        return "指定商品";
      }
    },
    formatStatus(status) {
      if (status === 1) {
        return "正常";
      } else if (status === -1) {
        return "已过期";
      } else {
        return "已下架";
      }
    },
  },
  data() {
    return {
      typeOptions: Object.assign({}, defaultTypeOptions),
      statusOptions: Object.assign({}, defaultStatusOptions),
      sendUserList: [],
      list: [],
      total: 0,
      listLoading: true,
      listQuery: {
        page: 1,
        limit: 20,
        name: undefined,
        type: undefined,
        status: undefined,
        sort: "add_time",
        order: "desc",
      },
      dataForm: {
        id: undefined,
        name: undefined,
        desc: undefined,
        tag: undefined,
        total: 0,
        discount: 0,
        min: 0,
        limit: 1,
        type: 1,
        status: 1,
        goodsType: 0,
        goodsValue: [],
        timeType: 0,
        days: 0,
        startTime: null,
        endTime: null,
        sendType: 1,
        sendUserId: [],
      },
      dialogFormVisible: false,
      dialogStatus: "",
      textMap: {
        update: "编辑",
        create: "创建",
      },
      rules: {
        name: [
          { required: true, message: "优惠券标题不能为空", trigger: "blur" },
        ],
      },
      downloadLoading: false,
      selectGoods: null,
      goodsOptions: [],
      selectGoodsCategory: null,
      goodsCategoryOptions: [],
      couponGoodsList: [],
      couponCategoryList: [],
    };
  },
  created() {
    this.getList();
    this.getCategoryList();
    this.getGoodsList();
    this.init();
  },
  methods: {
    init: function () {
      findVip().then((response) => {
        this.sendUserList = response.data.data.list;
      });
    },
    getList() {
      this.listLoading = true;
      listCoupon(this.listQuery)
        .then((response) => {
          this.list = response.data.data.list;
          this.total = response.data.data.total;
          this.listLoading = false;
        })
        .catch(() => {
          this.list = [];
          this.total = 0;
          this.listLoading = false;
        });
    },
    handleFilter() {
      this.listQuery.page = 1;
      this.getList();
    },
    resetForm() {
      this.dataForm = {
        id: undefined,
        name: undefined,
        desc: undefined,
        tag: undefined,
        total: 0,
        discount: 0,
        min: 0,
        limit: 1,
        type: 1,
        status: 1,
        goodsType: 0,
        goodsValue: [],
        timeType: 0,
        days: 0,
        startTime: null,
        endTime: null,
        sendType: true,
        sendUserId: [],
      };
      this.couponCategoryList = [];
      this.couponGoodsList = [];
    },
    handleCreate() {
      this.resetForm();
      this.dialogStatus = "create";
      this.dialogFormVisible = true;
      this.$nextTick(() => {
        this.$refs["dataForm"].clearValidate();
      });
    },
    createData() {
      if(this.dataForm.startTime == null || this.dataForm.endTime == null){
                  this.$notify.error({
                    title: "提示",
                    message: '请选择时间',
                  });
      }else{
         this.$refs["dataForm"].validate((valid) => {
            if (valid) {
              if (this.dataForm.goodsType === 1) {
                this.dataForm.goodsValue = this.couponCategoryList.map(
                  (item) => item.goodsCategoryId
                );
              }
              if (this.dataForm.goodsType === 2) {
                this.dataForm.goodsValue = this.couponGoodsList.map(
                  (item) => item.goodsId
                );
              }
              createCoupon(this.dataForm)
                .then((response) => {
                  this.list.unshift(response.data.data);
                  this.dialogFormVisible = false;
                  this.$notify.success({
                    title: "成功",
                    message: "创建优惠券成功",
                  });
                  this.getList();
                })
                .catch((response) => {
                  this.$notify.error({
                    title: "失败",
                    message: response.data.errmsg,
                  });
                });
            }
          });
      }
      
    },
    handleUpdate(row) {
      this.dataForm = Object.assign({}, row);

      this.dialogStatus = "update";
      this.dialogFormVisible = true;
      this.$nextTick(() => {
        if (this.dataForm.days === 0) {
          this.dataForm.daysType = 1;
        } else {
          this.dataForm.daysType = 0;
        }
        this.$refs["dataForm"].clearValidate();
      });
    },
    updateData() {
      this.$refs["dataForm"].validate((valid) => {
        if (valid) {
          if (this.dataForm.goodsType === 1) {
            this.dataForm.goodsValue = this.couponCategoryList.map(
              (item) => item.goodsCategoryId
            );
          }
          if (this.dataForm.goodsType === 2) {
            this.dataForm.goodsValue = this.couponGoodsList.map(
              (item) => item.goodsId
            );
          }
          updateCoupon(this.dataForm)
            .then(() => {
              for (const v of this.list) {
                if (v.id === this.dataForm.id) {
                  const index = this.list.indexOf(v);
                  this.list.splice(index, 1, this.dataForm);
                  break;
                }
              }
              this.dialogFormVisible = false;
              this.$notify.success({
                title: "成功",
                message: "更新优惠券成功",
              });
              this.getList();
            })
            .catch((response) => {
              this.$notify.error({
                title: "失败",
                message: response.data.errmsg,
              });
            });
        }
      });
    },
    handleDelete(row) {
      deleteCoupon(row)
        .then((response) => {
          this.$notify.success({
            title: "成功",
            message: "删除优惠券成功",
          });
          this.getList();
        })
        .catch((response) => {
          this.$notify.error({
            title: "失败",
            message: response.data.errmsg,
          });
        });
    },
    handleDetail(row) {
      this.$router.push({
        path: "/promotion/couponDetail",
        query: { id: row.id },
      });
    },
    handleDownload() {
      this.downloadLoading = true;
      import("@/vendor/Export2Excel").then((excel) => {
        const tHeader = [
          "优惠券ID",
          "名称",
          "内容",
          "标签",
          "最低消费",
          "减免金额",
          "每人限领",
          "优惠券数量",
        ];
        const filterVal = [
          "id",
          "name",
          "desc",
          "tag",
          "min",
          "discount",
          "limit",
          "total",
        ];
        excel.export_json_to_excel2(
          tHeader,
          this.list,
          filterVal,
          "优惠券信息"
        );
        this.downloadLoading = false;
      });
    },
    getGoodsList() {
      listGoods({ limit: 0 })
        .then((response) => {
          const goodsList = response.data.data.list;
          this.goodsOptions = [];
          for (let i = 0; i < goodsList.length; i++) {
            const item = goodsList[i];
            this.goodsOptions.push({
              goodsId: item.id,
              goodsName: item.name,
              goodsSn: item.goodsSn,
            });
          }
        })
        .catch(() => {
          this.goodsOptions = [];
        });
    },
    handleAddGoods() {
      if (this.selectGoods === null) {
        this.$message({
          message: "请先选择商品",
          type: "warning",
        });
        return;
      }
      this.couponGoodsList.push(this.getGoodsById(this.selectGoods));
      this.selectGoods = null;
    },
    handleDeleteGoods(index, row) {
      this.couponGoodsList.splice(index, 1);
    },
    handleAddGoodsCategory() {
      if (
        this.selectGoodsCategory === null ||
        this.selectGoodsCategory.length === 0
      ) {
        this.$message({
          message: "请先选择商品分类",
          type: "warning",
        });
        return;
      }
      this.couponCategoryList.push(
        this.getGoodsCategoryByIds(this.selectGoodsCategory)
      );
      this.selectGoodsCategory = [];
    },
    handleDeleteGoodsCategory(index, row) {
      this.couponCategoryList.splice(index, 1);
    },
    getGoodsById(id) {
      for (let i = 0; i < this.goodsOptions.length; i++) {
        if (id === this.goodsOptions[i].goodsId) {
          return this.goodsOptions[i];
        }
      }
      return null;
    },
    getCategoryList() {
      listCategory().then((response) => {
        this.goodsCategoryOptions = response.data.data.categoryList;
      });
    },
    getGoodsCategoryByIds(ids) {
      let name;
      let parentName;
      let pParentName;
      let ret = 0;
      for (let i = 0; i < this.goodsCategoryOptions.length; i++) {
        if (this.goodsCategoryOptions[i].value === ids[0]) {
          parentName = this.goodsCategoryOptions[i].label;
          ret = 0;
          for (let j = 0;j < this.goodsCategoryOptions[i].children.length;j++) {
            if (this.goodsCategoryOptions[i].children[j].value === ids[1]) {
              ret=1;
              name = this.goodsCategoryOptions[i].children[j].label;
              for (let k = 0;k < this.goodsCategoryOptions[i].children[j].children.length;k++) {
                if (this.goodsCategoryOptions[i].children[j].children[k].value === ids[2]) {
                  ret=2;
                  pParentName = this.goodsCategoryOptions[i].children[j].children[k].label;
                }
              }
            }
          }
        }
      }
      return {
        goodsCategoryId: ids[ret],
        parentCategoryName: parentName,
        goodsCategoryName: name,
        pParentCategoryName: pParentName,
      };
    },
    clickType(type) {
      this.dataForm.desc = "";
    },
  },
};
</script>
